Cloth-shearing machine



(No Model.)

D. C. SUMNER; CLOTH SHEARING MACHINE.

No. 282,401. Patented July 31, 1888.

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T UNITED STATES PATENT OFFICE.

DWIGHT o. SUMNER, or woEoESTEE, MASSACHUSETTS.

CLOTH-SHEARING MACHINE.

SPECIFICATION forming part of Letters Patent No. 282,401, dated July 31 1883.

Application filed December 30,1882. (Nomodel.) i i To all whom, it 722,051 concern..-

Be it known that I, DWIGHT CLINTON SUM- NER, of Worcester, in the county of lVorcester and State of Massachusetts, have invented certain ncwand useful Improvements in Cloth- Shearing Machines; and I declare the followiug to be a description of my said invention sufficiently full, clear, and exact to enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification. ii i My present invention relates to sh caring-cylinders or revolvers in that class of cloth-shearin g machines in which a cylinder or revolver having notched sectional or serrated blades or cutting-points is operated in conjunction with a ledger-blade for effecting ornamentation of the fabric by cutting away portions of the pile or nap surface thereof as the fabric is passed forward over a suitable support, guide, or rest in the machine and my invention consists in an improved construction of the revolver, or in a certain peculiar form, order, or system of arrangement of the cutting-points or blade-sections' of the shearing-cylinder, whereby the- .mechanism isadapted for producing upon fabrics a particular class' of ornamental patterns composed of longitudinal lines or stripes with 1ntervening transverse lines or checks, as more fullyhereinafter explained.

In the drawings, Figure 1 is a side viewof so much of a shearing cylinder or revolver as is necessary to illustrate the nature of my invention, one portionshowing the sections as arranged for a single-line pattern and the other portion showing adoubleline pattern. Fig. 2 is a cross-section of the revolver at line a: m. Fig. 3 is a cross-section of the revolver at line '10 w. Fig. 4 is a vertical sectional view indicati 11g the arrangement of the shearing, guiding, and'feeding devices in the machine. Figs. 5 and 6 represent portions of cut fabric, indicating the nature or classof pattern effects produced by mechanism constructed in accordance with my withindescribed improvements.

In the references 011 the drawings, A denotes the revolver or shearing-cylinder; B, the ledger-blade; G, the cloth support, guide, or rest; D, the cloth or fabric, 13, the friction or cloth feeding rolls, and f the carrier or directing rolls, which parts may, be severally located and operated in any well-known or suitable manner in the shearing-machine.

The shearing-cylinder or revolver A, construct with series of narrow isolated sections, I

cutting points or teeth, a, located at intervals of its length, and arranged to stand in circunr ferential rows or circles around the cylinder,

said cutters or points standing in sufficiently close proximity to each other in such rows that they will act, with the ledgenblade, to shear clear or continuous lines in the nap surface or pile of the fabric, said lines extending in longitudinal direction of the piece, as indicated at Z, Figs. 5 and 6. Within the intervening spaces'between said circumferential rows of cuttingteeth a, I arrange occasional broader blade-sections cl, standing longitudinally, or nearly so, with the cylinder, and placed only at long intervals, or, for instance, with-but two or three such blade-sections in the circumference thereof. These blades (1 act in such manner as to make occasional cuts or transverse lines in the nap or pile surface of the fabric, as at m, Figs. 5 and 6, and leave uncut portions or spaces 0 between the said lines, substantially as illustrated.

The revolver may be made with blades notched or recessed to leave cutting points or sections, or with independent teeth or sections d at the several intervals can be placed in such lateral relation with each other as may be pre ferred, to give the transverse lines m or checks 0 a regular or an alternating range between the several intervals or longitudinal stripes Z; or the said blade-sections cZ may be arranged to continue through or into the rows a or to stop off between each row, thereby forming co11tinesznmoa uous transverse lines m, or short portions of such lines m, from one line Z to the next.

It will thus be observed that the effect of this construction, when the revolver A is in operation with the 1edger-blade B and the forward-moving fabric D, is to produce a class of pattern composed of a series of lines or stripes longitudinally of the fabric and a series of intermediate transverse markings or checks, similar in nature to What is shown in Figs. 5 and 6, and this, too, by the simple action of the revolver and a plain 1edger-blade.

It Will be understood that I do not herein make claim, broadly, to a notched or sectional bladed revolver for shearing-machines irrespective of the system of arrangement or order of development of its cutting-sections.

Whatl claim as of my invention, and desire to secure by Letters Patent, is-

1. A revolver or shearing-cylinder for clothshearing machines having series of isolated cutting points or teeth a arranged at interrows of cutting-teeth, as set forth, in combination with the ledger-blade B and cloth-support O in a cloth-shearing machine, substantially as and for the purpose hereinbefore described.

NVitness my hand this 26th day of December, A. D. 1882.

DWIGHT CLINTON SUMNER. \Vitnesses OHAs. H. BURLEIGH,

S. R. BARTON. 

